correct information about record identification
correct information about record identification

The description claimed that `.new_record?` was used in `form_for` to derive the action and button text.
But in the code `.persisted?` is used for that purpose.

[ci skip]
esparta/rails,notapatch/rails,rafaelfranca/omg-rails,tgxworld/rails,mechanicles/rails,tjschuck/rails,bogdanvlviv/rails,repinel/rails,bogdanvlviv/rails,iainbeeston/rails,Erol/rails,gauravtiwari/rails,tgxworld/rails,gauravtiwari/rails,eileencodes/rails,yalab/rails,Edouard-chin/rails,eileencodes/rails,shioyama/rails,MSP-Greg/rails,palkan/rails,palkan/rails,EmmaB/rails-1,prathamesh-sonpatki/rails,Stellenticket/rails,tgxworld/rails,fabianoleittes/rails,MSP-Greg/rails,joonyou/rails,Stellenticket/rails,yahonda/rails,MSP-Greg/rails,BlakeWilliams/rails,kddeisz/rails,betesh/rails,palkan/rails,esparta/rails,eileencodes/rails,kmcphillips/rails,yahonda/rails,betesh/rails,vipulnsward/rails,notapatch/rails,georgeclaghorn/rails,BlakeWilliams/rails,betesh/rails,notapatch/rails,mechanicles/rails,vipulnsward/rails,kmcphillips/rails,yawboakye/rails,repinel/rails,shioyama/rails,tgxworld/rails,Envek/rails,Vasfed/rails,Edouard-chin/rails,iainbeeston/rails,schuetzm/rails,betesh/rails,EmmaB/rails-1,palkan/rails,jeremy/rails,rails/rails,yalab/rails,yalab/rails,vipulnsward/rails,BlakeWilliams/rails,joonyou/rails,bogdanvlviv/rails,joonyou/rails,Erol/rails,tjschuck/rails,iainbeeston/rails,shioyama/rails,Envek/rails,yalab/rails,Envek/rails,starknx/rails,mechanicles/rails,yhirano55/rails,starknx/rails,jeremy/rails,fabianoleittes/rails,EmmaB/rails-1,prathamesh-sonpatki/rails,MSP-Greg/rails,repinel/rails,kddeisz/rails,Erol/rails,Edouard-chin/rails,gauravtiwari/rails,Vasfed/rails,repinel/rails,yhirano55/rails,georgeclaghorn/rails,Erol/rails,rafaelfranca/omg-rails,lcreid/rails,esparta/rails,kddeisz/rails,tjschuck/rails,bogdanvlviv/rails,prathamesh-sonpatki/rails,yhirano55/rails,yahonda/rails,Stellenticket/rails,eileencodes/rails,rails/rails,iainbeeston/rails,vipulnsward/rails,kmcphillips/rails,lcreid/rails,lcreid/rails,yawboakye/rails,schuetzm/rails,fabianoleittes/rails,Envek/rails,Edouard-chin/rails,yhirano55/rails,fabianoleittes/rails,tjschuck/rails,kmcphillips/rails,joonyou/rails,starknx/rails,yahonda/rails,lcreid/rails,esparta/rails,rafaelfranca/omg-rails,Vasfed/rails,mechanicles/rails,schuetzm/rails,Vasfed/rails,jeremy/rails,BlakeWilliams/rails,georgeclaghorn/rails,yawboakye/rails,Stellenticket/rails,shioyama/rails,yawboakye/rails,notapatch/rails,rails/rails,schuetzm/rails,rails/rails,kddeisz/rails,jeremy/rails,georgeclaghorn/rails,prathamesh-sonpatki/rails